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Bio II LAB > Practical 2 > Flashcards

Practical 2 Flashcards

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Biology 101 flashcards
1
Q

Porifera example

A

Sponges

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2
Q

Porifera characteristics

A
  • asymmetrical
  • adults are non mobile
  • filter feeders
  • diploblastic
  • not protostome or deuterostome
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3
Q

cnidaria example

A

jellyfish

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4
Q

cnidaria characteristics

A
  • radially symmetrical
  • aquatic
  • active predator
  • diploblastic
  • not protostome or deuterostome
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5
Q

platyhelminths example

A

flatworms

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6
Q

platyhelminths characteristics

A
  • bilaterally symmetrical
  • cephalized
  • mostly parasitic
  • protostomes
  • triploblastic
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7
Q

mollusca example

A

snails

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8
Q

mollusca characteristics

A
  • bilaterally symmetrical
  • protostomes
  • triploblastic
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9
Q

annelida example

A

earthworm

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10
Q

annelida characteristic

A
  • bilaterally symmetrical
  • cephalized
  • protostomes
  • triploblastic
  • soil decomposers or parasites
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11
Q

echinodermata example

A

sea star

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12
Q

echinodermata characteristics

A
  • adults are radially symmetrical
  • larvae are bilaterally symmetrical
  • deuterostomes
  • triploblastic
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13
Q

chordata example

A

humans

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14
Q

chordata characteristics

A
  • bilaterally symmetrical
  • cephalized
  • has notochord
  • deuterostomes
  • triploblastic
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15
Q

general cell division

A

mitosis

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16
Q

differentation

A

cells, tissues, and organs become specialized for a particular function

17
Q

morphogenesis

A

development of animals shape

18
Q

fertilization

A

union of male and female gametes to form zygote

19
Q

cleavage

A

makes multicellular morula and blastula

20
Q

gastrulation

A

forms gastrula

21
Q

endoderm

A

forms gut

22
Q

mesoderm

A

lines body cavity interior

23
Q

ectoderm

A

forms body covering

24
Q

neurulation

A

forms nervous system

25
Q

organogenesis

A

develops organs

26
Q

General systems animals need

A

Red: Reproduction
Grapes: Gas exchange
So: Sensing the environment
Done: Digestive system

27
Q

Convergent evolution

A

two species with different ancestors have similar characteristics

28
Q

divergent evolution

A

two species with same common ancestor have different characteristics

29
Q

why is “worm” not a good taxonomic distinction

A

no b/c it is a term to describe a frequent body plan that is anything tube-like

30
Q

notochord

A

a dorsal supporting rod that may be replaced by a vertebral column in some groups.

31
Q

hollow dorsal nerve chord

A

forms brain and spinal cord in some groups

32
Q

pharyngeal slits

A

opening from pharynx

33
Q

post anal tail

A

extension of body beyond the anus

Bio II LAB (2 decks)

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